I was using blockchain wallet for 2 years and everything was fine but 15 days ago they have some problems with there wallet.
I couldn`t login for 2 days after that they gave mi new address, i tried to import old address to use and they put it in watch only and now i can`t get my funds.
I most say that my comp crashed and i lost my private key.
Their support would not even hear me, said they can not help me and that's it.
So sad for you but really nothing to do. Login information I means related private key etc is mostly private and sensative issue. Only owners can control it and get access to login. For now, learn your fault and keep going further smoothly following what have you done past.